Title (fr)

Publication

Application

Priority

DE 19536505 A 19950929

EP 9604234 W 19960927

Abstract (en)

[origin: DE19536505A1] The invention concerns a biodegradable filter tow or filter material (1) of renewable raw materials for use as tobacco filter elements for cigarettes, cigars or pipes, as well as a process for its manufacture. Fibres, foils or foams produced in an extrusion process and consisting of biopolymers based on thermoplastic starch and their polymer mixture are processed to form the filter tow or filter material according to the invention. The advantages of the invention reside in the use of biodegradability of the natural biopolymer filter material, a pollutant-reducing aroma-enhancing filter effect and an economical manufacturing method.